ClockingIT has gotten some new features during the work-flow rewrite. Here's an incomplete list, in no particular order:

Localization (English, German, Norwegian and Spanish)

Integrated Wiki

Task Types

Task Severities

Search

Task Attachments

Revised and cleaner look

New Overview Page

Email Notifications

Tags

New Task edit form

Task Resolutions

Customizable Views

Automatic Tag grouping

Better task filtering

Fine grained permissions

New icons

Multiple assignees per task

Print CSS

More reports

New Timeline implementation

Schedule / Calendar

RSS Feed

Completion of Projects and Milestones

Task Dependencies

Repeating Tasks

In this release, we've removed the whole Task List concept, and gone for a full blown tags solution – which seems to work really well. If you tag a task with just one tag, you'll get pretty much the old interface when you select the 'group by tags' option in the views or when browsing your tasks.